To get to know Hadoop and Docker swarms I decided to build a 4-node Raspberry Pi cluster. As everybody I wanted to have it as compact as possible with few as possible wires to attach. In contrast to most other builds I chose the vertical hamburger setup in order to enhance airflow. However I don’t think it’s really necessary. The buns of the hamburger are made of aluminum because I like the look and enjoy to work with the material. Also there is a nice website thats selling scrap aluminum parts for a good price, its linked below.
For the power supply I decided to go with an Anker USB Charger 40W since I saw it working well for others. I even managed to power the Cisco switch from the same power supply which saved me to have two power chords running to the cluster.
I like the edgy look of the aluminum but don’t let your children fall on it or avoid throwing it around since the corners are really sharp. To avoid scratches on the table I added a protective ribbon but it doesn’t look too nice (not shown below).
Stay tuned for seeing it up and running!
If you want to rebuild my setup here you can find a detailed parts list. The most important parts that are necessary (important for function) are listed in the beginning the bonus parts (only for appearance) in the end. If you have any questions don’t hesitate to dm me on twitter @fastscheidplatz or leave a comment below.
Here the parts list:
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4 x RASPBERRY PI 3
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1 x RPI MOUNTINGKIT1 - Raspberry Pi mounting kit, 10-mm spacer bolts
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5 x RPI MOUNTINGKIT2 - Raspberry Pi mounting kit, spacer bolts 20-mm
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1 x Anker USB-Ladegerät PowerPort USB Charger 40W 2.4A, 5-Port USB-A, für mobile Geräte, schwarz
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2 x Platte 3,0 mm AlZnMgCu1,5 125 mm x 150 mm https://www.alu-verkauf.de/RESTPOSTEN
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1 x Premium Micro USB Kabel bunt als Schlüssleanhänger Ladekabel / Datenkabel in 4 Farben
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1 x DELOCK 82197 :: USB Konverter, A Stecker auf 1x Hohlstecker, 1 m
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4 x Cat.5e Patchkabel SF/UTP blau 0,25 m - will be replaces by Cat. 7
Not shown in the pictures yet:
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SK6812 RGBW LED Stripe - LEDs mit integriertem WS2811 controller, 60 LED/m, wie WS2812B
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KS1-4SX KS1-4S Kantenschutzprofil schwarz Klemmbereich 1-4 mm Maße 10x14,5 mm
Inspired by builds from:
https://need.computer/posts/4-node-raspberry-pi-cluster.html
https://www.jeffgeerling.com/project/raspberry-pi-dramble
https://makezine.com/projects/build-a-compact-4-node-raspberry-pi-cluster/